LEUCOSPORI. 



97 



They grow more slowly and last longer than other Agarics. The Coliybia. 

 colour in most of them is variable. A. esculentus is perhaps the 

 only edible species. 



Stem 

 even, 



Series A. Gills white or brightly coloured, and not cinereous. 



I. Striaspedes (striate - stemmed). Stem 

 stout, hollow or stuffed with a somewhat 

 separate spongy pith, sulcate or fibrilloso- 

 striate. 



* Gills broad, somewhat distant, 

 ** Gills crowded, narrow. 



II. Vestipedes (clothed-stemmed). 

 thin, equal, fistulose or with a pith, 

 velvety, floccose, or pridnose. 



* Gills broad, somewhat distant. 



** Gills very narrow, very crowded. 



III. Laevipedes (even - stemmed). Stem 

 thin, equal, fistulose, naked, smooth (leaving 

 out of view the base) and not conspicu- 

 ously striate (but under a lens the stem of A. 

 dryophihis, c., is slightly striate). 



* Gills broad, lax, commonly more or less 

 distant. 



** Gills narrow, crowded. 



Flesh white. 



VII. Agaricus (Collybia) butyra- 

 ceus. One-fourth natural size. 



Series B. Gills becoming cinereous. Hygrophanus. 



IV. Tephrophanoe (ill-favoured). Colour fuscous, becoming cinereous. Allied 

 to the last group of the Tricholomata and the Clitocybae, but distinguished by 

 the cartilaginous stem. 



* Gills crowded, somewhat narrow. 

 * Gills very broad, more or less distant. 



SERIES A. GILLS WHITE OR BRIGHTLY COLOURED, &c. 



I. STRLEPEDES. 

 * Gills broad, somewhat distant. 



195. A. radicatus Rehl. Pileus about 7.5-10 cent. (3-4 in.) 

 broad, fuscous-olivaceous, &c., fleshy, thin, convex then flattened, 

 gibbous rather than umbonate, often irregular, glutinous, and 

 radiato-rugose j flesh soft, elastic, white. Stem 10-15 cent. (4-6 

 in.) and more long, 6-8 mm. (3-4 lin.) thick, tense and straight, 

 rigid, stuffed, equally attenuated from the root to the apex (equal 

 only when more slender), rather smooth, at length striato-sulcate 

 (the texture of the cartilaginous cuticle often twisted), commonly 

 paler than the pileus, ending at the base in a tail-like fusiform root 

 which is often a span long. Gills attenuated behind and adfixed, 

 often with a decurrent tooth, at length somewhat separating, ven- 

 tricose, distant, rather thick, shining- white. 



